Difference between revisions of "DSP Binary"
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| Line 8: | Line 8: | ||
| 0x0 | | 0x0 | ||
| 0x100 | | 0x100 | ||
| − | | RSA Signature | + | | RSA Signature over bytes 0x100-0x300 |
|- | |- | ||
| 0x100 | | 0x100 | ||
Revision as of 15:26, 13 September 2014
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x100 | RSA Signature over bytes 0x100-0x300 |
| 0x100 | 4 | Magic ('DSP1') |
| 0x104 | 4 | DSP Binary size |
| 0x108 | 2 | Memory layout (bits 0-7: Program ram, 8-15: Data ram). Each bit represents a memory region. The region is always 0x8000 bytes in size (the first region starts at 0x1FF00000; the next is a 0x1FF08000 and so on). The HW registers for DSP memory configuration are (u8*)(0x1EC40000 + bit position) (?). |
| 0x10C | 1 | ? |
| 0x10D | 1 | Special segment Mem type (0=1=0x1FF00000(Program ram)+,2=0x1FF40000(Dataram)+) |
| 0x10E | 1 | Num segments (must be 1..10) |
| 0x10F | 1 | Flags (bit0=??, bit1=load special segment) |
| 0x110 | 4 | Special segment Start addr in 16-bit words |
| 0x114 | 4 | Special segment Size in bytes |
| 0x118 | 8 | Zero |
| 0x120 | 0x30*10 | Segment records |
If "special segment" flag is set, 0x214 bytes are read from CfgS:GetConfigInfoBlk8 block 0x70000, and then copied to the special segment given. If the reading fails, zeroes are written in its place. The purpose of this segment is currently unknown.
Each segment record:
| Offset | Size | Description |
|---|---|---|
| 0 | 4 | Offset data |
| 4 | 4 | Start addr in 16-bit words (must be < 0x20000 for type 0, < 0x10000 for type 1,2) |
| 8 | 4 | Size in bytes |
| 15 | 1 | Mem type (0=1=0x1FF00000(Program ram)+,2=0x1FF40000(Data ram)+) |
| 16 | 32 | SHA256 hash of segment |
The normal ending of this files is *.cdc